4505321 has 4 divisors (see below), whose sum is σ = 4511700. Its totient is φ = 4498944.

The previous prime is 4505317. The next prime is 4505329. The reversal of 4505321 is 1235054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 2059225 = 1564^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 4505321 - 2² = 4505317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4505293 and 4505302.

It is not an unprimeable number, because it can be changed into a prime (4505329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976 + ... + 3593.

It is an arithmetic number, because the mean of its divisors is an integer number (1127925).

Almost surely, 2^4505321 is an apocalyptic number.

It is an amenable number.

4505321 is a deficient number, since it is larger than the sum of its proper divisors (6379).

4505321 is an equidigital number, since it uses as much as digits as its factorization.

4505321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4505321 is about 2122.5741447591. The cubic root of 4505321 is about 165.1614092389.

The spelling of 4505321 in words is "four million, five hundred five thousand, three hundred twenty-one".